>It looks to me like the intention of the person who originally created the new >ArrayList (Michael A. Labriola) was for it to be tested with the rest of the >framework and then to replace the original ArrayList:
Nope, I don't think that was me. I was just changing the itemUpdateHandler. I still have the local copy. Found this though: https://apache.googlesource.com/flex-sdk/+/f3234bff7671a118bed31182c7bb4032e0fc5284 Mike